Toyota Corolla 2019–2021 — technical service bulletin
Bulletin T-SB-0121-20 · NHTSA communication 10187240 · issued Dec 14, 2020
Technical service bulletin
communication type
Back Over Prevention
component
2019–2021
model years
5
vehicle entries
Official summary
TSB: Some 2020 ? 2021 model year Corolla and Corolla Hybrid vehicles, and some 2019 ? 2021 model year Corolla Hatchback vehicles may exhibit a sloshing or splashing noise when turning at low speeds or when opening and closing doors. This can be caused by water inside one or more of the vehicle doors. Follow the Repair Procedure in this bulletin to address this condition.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.